.floating-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  background-color: #4CAF50;
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  font-size: 30px; /* 设置字体大小为 20px */
}

.floating-btn:hover {
  transform: scale(1.1);
}

.add-menu {
  display: none;
  position: fixed;
  bottom: 80px;
  right: 20px;
  background-color: transparent;
  border-radius: 4px;
  /*box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); 去掉阴影效果*/
  z-index: 1000;
}

.menu-btn {
  display: block;
  width: 100%;
  padding: 10px;
  background-color: #4CAF50;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  margin-bottom: 10px;
  transition: background-color 0.3s ease;
}

.menu-btn:hover {
  background-color: #45a049;
}